Signal resolved type

The integral intensities of signals of polysaccharides, obtained with a modem spectrometer under the usual operating conditions, are proportional or quasi-proportional, to the number of 13C nuclei present. This has been observed, in particular, in the case of linear hexo-pyranan structures containing one type,11,47,51,55,56 58-61 or two equal types, of linkage,62 or branched-chain polymers having two linkage types,53,58 where the resonances are readily resolved. In such cases, the T values would be low, 0.2 s or less, and the n.O.e. values would be approximately equal. However, few actual determinations of these values have been made, and extrapolation of such assumptions to more-complex polysaccharide structures is not recommended, as outlined in Section V,2,... 

Cu0(l)-Zr02(99), on the other hand, contained only two types of Cu + species viz., isolated Cu + ions (II) and interacting Cu ions (III) (Fig. 11.12, curve c). The spin Hamiltonian parameters of these species are different from Cu0(l)-Ce02(99). Unlike in Cu0(l)-Ce02(99) (Fig. 11.12, curve a), the perpendicular Cu-hyperfine features could not be resolved in Cu0(l)-Zr02(99) (Fig. 11.12, curve c). Type m species of CuO-Zr02 showed a signal at gav = 2.12. 

---